Ganesh Veer

Add Tracking Code To WC Thank You Page 
This plugin will allows you to add tracking code to the woocommerce thank you page. No need to write any code. 
Once you install this plugin, you will get an option in backend to add the tracking code. 
Login to your dashboard, goto woocommerce->Products 
Then click on “WC Tracking Code” 
Add your tracking code here

Add Tracking Code To WC Thank You Page

This plugin will allows you to add tracking code to the woocommerce thank you page. No need to write any code.

Silkalns

WP Chill

Cristian Raiber

A very useful plugin for everyone using WordPress. Adds reCaptcha security to the WordPress login form, register form and comment form. This plugin could help your blog get rid of a lot of spam comments or brute-force attacks.
Nothing gets passed it if the reCaptcha doesn’t validate.
A few notes about the plugin:
<ul>
<li>Supports audio or image captcha types</li>
<li>Can generate the reCaptcha image / audio type in a number of predefined languages</li>
<li>Adds reCaptcha protection to the WordPress login form</li>
<li>Adds reCaptcha protection to the WordPress register form</li>
<li>Adds reCaptcha protection to the WordPress comment form</li>
<li>Adds reCaptcha protection to the WordPress recover password form</li>
</ul>

Uber reCaptcha

This plugin adds the reCaptcha form to the WordPress login form, recover password form, register form and comment form.

Add Tracking Code To WC Thank You Page vs Uber reCaptcha